<template>
    <div class="person">
        <h2>
            姓名：{{ name }}
        </h2>
        <h2>
            年龄：{{ age }}
        </h2>
        <button @click="changeName">修改名字</button>
        <button @click="changeAge">修改年龄</button>
        <button @click="showTel">查看联系方式</button>
    </div>
</template>

<script lang="ts">
export default {
    name: 'Person',
    // setup() {
    //     let name = '张三'
    //     let age = 18
    //     let tel = '13823231414'

    //     function changeName() {

    //     }
    //     function changeAge() {

    //     }
    //     function showTel() {

    //     }
    //     return {name, age, tel, changeAge, changeName, showTel}
    // }
}
</script>

<script lang="ts" setup>
import {ref} from 'vue'
let name = ref('张三')
let age = ref(18)
let tel = '13823231414'

function changeName() {
    name.value = 'zhang-san'
}
function changeAge() {
    age.value += 1
}
function showTel() {
    alert(tel)
}
</script>

<style>
.person {
    background-color: skyblue;
    box-shadow: 0 0 10px;
    border-radius: 10px;
    padding: 20px;
}

button {
    margin: 0 5px;
}
</style>